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Finding the Fourth Proportional to 965,341.60, 1,448,012.40 and 609,200.80

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Solution

The fourth proportional to 965,341.60, 1,448,012.40 and 609,200.80 is: 913,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,341.60 : 1,448,012.40 = 609,200.80 : x
  2. Step 2: Convert to fraction form
    965,341.60/1,448,012.40 = 609,200.80/x
  3. Step 3: Cross multiply
    965,341.60x = 1,448,012.40 × 609,200.80
  4. Step 4: Simplify right side
    965,341.60x = 882,130,312,489.92
  5. Step 5: Solve for x
    x = 882,130,312,489.92/965,341.60
  6. Step 6: Final answer
    x = 913,801.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.